Tensile testing equipment of trampoline tension spring

Abstract

The invention relates to tensile testing equipment of a trampoline tension spring, comprising a stand, wherein both ends on the upper part of the stand are respectively provided with a fixing ring and a fixed pulley set; the side surface at one end of the stand is provided with a reversing pulley, and the lower part of the stand is provided with a pulling rope winding device; a tensile force display is fixed on the fixing rings; and pulling ropes on the fixed pulley set sequentially round a moving pulley set arranged on the stand and the reversing pulley on the side surface at one end of the stand and is connected with the pulling rope winding device on the lower part of the stand. During testing, a tension spring sample is hung between the tensile force display and the moving pulley, and a rocking handle is rotated to drive the pulling rope to rotate; the pulling rope is stressed and wound on a pulling rope shaft; the moving pulley set pulls the tension spring to extend until reaching a specific length; the value of the tensile force display is read; then the rocking handle is released, and under the action of a ratchet wheel, the rocking handle and the pulling rope shaft cannot reverse; when the tension spring needs to be released back, a pawl is lifted, and a whole dynamic system can retract under the action of the restoring force of the tension spring; and the tension spring sample is removed to change another tension spring sample.

Description

technical field [0001] The invention relates to a sports equipment test equipment, in particular to an energy-saving and labor-saving trampoline extension spring test equipment. Background technique [0002] There are many extension springs installed between the mesh surface and the frame on the trampoline. These extension springs must ensure sufficient elastic properties within a certain stretch range, and must ensure that there is only elastic deformation without the slightest plastic deformation. The tension spring is subjected to a tensile test several times the natural length of the spring body to ensure that the above requirements are met. Otherwise, the mesh surface will drop and the elasticity will be insufficient during the athlete's use. What's more serious is that the mesh surface may touch the ground when the athlete makes a big move, causing terrible injuries to the athlete. Therefore, it is particularly important to inspect the trampoline extension spring to e...

AI Technical Summary

Problems solved by technology

However, due to the particularity of the detection of trampoline extension springs, there is no special detection equipment on the market at present. It is labor-intensive and labor-intensive to replace it with ordinary detection equipment, and the detection effect is not ideal.

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